Hire the Best TCP/IP Specialists in Dhaka, BD

I have over 12+ Years of working experience in the Networking Field. I am an enthusiastic NETWORK ENGINEER with the necessary drive and determination needed to resolve complex networking issues. Possessing effective organizational skills and excellent working knowledge of networking technologies and having a commitment to keep up to date with the latest developments. I’m an adaptable and efficient team player with excellent communication skills at all levels. Experienced in providing motivation, guidance, and an up-to-date networking consultancy service to clients. Now looking for a new and challenging network engineering task that will make the best use of my existing skills and experience and also further my career as a freelancer. Technical Skill Set Summary:::::::: • Cisco routers / switches / WLC • Cisco ASA / FTD / ISE / FMC • Cisco NX-OS • Network Automation using Python3 • Checkpoint Firewall & Endpoint Security • Sophos XG Firewall & Intercept X with advance EDR • Gateway Redundancy Protocols: HSRP / VRRP / GLBP • Routing: RIPng / OSPF / EIGRP / BGP / PBR / PfR / VRF • VLANs / STP / RSTP / Ether channel (LAG) • VPNs – GRE / IPSec / DMVPN • LAN-WAN / NAT / ACL • IPv4 / IPv6 • F5 Load Balancer • SIEM-Splunk, Qradar, Wazhu, Suricata, Elastic • Juniper Junos • Palo Alto Next-Generation Firewall • Fortinet Solutions- FortiGate Firewall, FortiMail email gateway, and FortiAnalyzer. • Juniper firewalls SRX Series • TCP/IP, DNS, DHCP • Wireshark • MikroTik • Virtualization: VMware vSphere 6.x • Windows Server 2012 R2 Qualifications: • Cisco Certified Specialist - Security Core (CCNP SCOR-350-701) • Cisco Certified Network Associate (CCNA-R&S) • Palo Alto Networks Certified Network Security Engineer (PCNSE) • APPLICATION DELIVERY FUNDAMENTALS (F5-101) • Fortinet Network Security Expert (NSE 1, NSE 2, NSE 3 & NSE 4) • JNCIA-SEC (JNCIA-SEC) • Junos (JNCIA-Junos)

🥇 Top Upwork Email Tech Support & Deliverability Expert 📩 7+ Years of Experience | Email Setup | Deliverability | Email Migrations | Business Mail | DNS Records | DKIM, SPF, MX, DMARC Hi! I'm a passionate Email Tech Support Specialist with over a decade of hands-on experience. I’ve helped 650+ of startups, eCommerce brands, agencies, and businesses ensure optimize their email infrastructure, improve inbox delivery, and solve complex email issues — and I’m confident I can do the same for you. Here’s How I Can Help: ✅ Email Deliverability & Spam Fix Solve spam issues across Gmail, Outlook, Zoho, Yahoo Repair or set up SPF, DKIM, DMARC, MX records Remove blacklists, fix DNS errors, and secure mail servers Optimize your sender reputation for high inbox placement ✅ Business Email Setup Google Workspace (G Suite), Microsoft 365, Amazon WorkMail, Zoho Mail, Yandex Configure domains, SSL, MX, SPF, DKIM, DMARC Domain verification for Shopify, Wix, Squarespace, ClickFunnels, and more ✅ Email Migrations (Zero Downtime Guaranteed) cPanel ↔ Google Workspace / Office 365 / Zoho Gmail → Google Workspace, Zoho → Office 365 Full backup and seamless mailbox transfers 🌐 Domain & SSL Configuration Domain setup with Spaceship, GoDaddy, Namecheap, A2 Hosting, Bluehost, SiteGround, and more ✅ Email Marketing & Template Design Mailchimp, Klaviyo, MailerLite, Brevo, HubSpot, Mandrill SendGrid, Campaign Monitor, StampReady, Campaigner, Drip Responsive email templates designed for inbox delivery Setup dedicated sending domains and domain authentication ✅ Cloud & Server Solutions AWS, Google Cloud, Microsoft Azure WHM, cPanel, Plesk, VestaCP, Webmin, Virtualmin Linux VPS (Ubuntu/CentOS), CentOS Web Panel Why Choose Me? ✔ 10+ Years of Real-World Experience ✔ Fast, Friendly, and Clear Communication ✔ 100% Satisfaction Guaranteed ✔ Quick Turnaround Time ✔ Available 24/7 ✔ 7 Days of Free Post-Delivery Support ✔ Ongoing Support for Future Needs ✅ Let’s ensure your emails reach where they belong — the inbox! Message me today and let’s get started.

Are you struggling with VoIP system issues, telecom compliance, or PBX deployment? With 10+ years of hands-on experience, I deliver end-to-end VoIP engineering and telecom compliance solutions that keep your business running and compliant. I specialize in: 🔧 VoIP Platform Expertise • 3CX (Advanced Certified) — design, deployment, migration, troubleshooting • FreePBX / Asterisk / Issabel / Elastix • FusionPBX / FreeSWITCH • PortaOne / PortaSwitch / Telinta • Grandstream UCM series • Yeastar S & P Series 📋 Telecom Compliance (Rare Specialty) • STIR/SHAKEN implementation & attestation • FCC Form 499 filing • OCN registration & filing • Robocall mitigation compliance 🌐 Network & Infrastructure • SIP trunk provisioning (Twilio, Bandwidth, Telnyx, VoIP.ms) • Fortigate, Sophos, SonicWall firewall configuration • QoS & VLAN setup for voice traffic • E911 configuration • Endpoint provisioning (Cisco, Poly, Yealink) ☁️ Cloud & Virtualization • MS 365, Azure, AWS • VMware vSphere / ESXi • Linux (RHEL, CentOS, Ubuntu) 🏆 Certifications • 3CX Advanced Certified • CCNA — Cisco Certified Network Associate • RHCSA & RHCE — Red Hat Certified • VMware Data Center Virtualization Notable projects include deploying VoIP platforms for banks, 2000+ user mail server deployments, and full data center virtualization implementations. I work with small carriers, CLECs, UCaaS providers, VoIP resellers, and businesses of all sizes. Whether you need a quick fix or a full system deployment — I deliver reliable, enterprise-grade solutions. Let’s talk about your VoIP challenges today.

Awesome Job Success ~ Clients high recommendation ~ Completed over 50+ jobs ~Delivers On Time ~ Fast Communication ~ Accurate & Efficient ~ detail oriented & reliable. Hello, I am a full/part time passionate freelance worker. I am an IT Specialist with 8+ years of professional experience in system administration, networking, cybersecurity support, and IT infrastructure management. I have worked in TV broadcasting, corporate IT, and ISP environments, delivering reliable technical solutions and ongoing system maintenance for large organizations. ✔ My expertise includes Windows & Linux system administration,Artificial intelligence (AI), Active Directory, Office 365, virtualization (VMware, Hyper-V, Oracle VM), CCTV, server management, and enterprise-level network configuration. I have hands-on experience with Cisco, MikroTik, LAN/WAN, firewall configuration, optical fiber, and server monitoring tools. ✔ I provide end-to-end IT support, including hardware/software troubleshooting, malware analysis, backup strategies and IT security hardening. I also work with WordPress, SEO/SMM, Digital Marketing, n8n, Internet Research and digital administration support. I am dedicated, detail-oriented, and committed to delivering fast, secure, and reliable IT solutions for clients worldwide. I ensure timely communication, professional service, and long-term support for all projects.

I build reliable IT environments that keep businesses running without disruption. Worked with over 150 clients worldwide and bringing over 10 years of hands-on experience in IT support and system administration, I specialize in diagnosing complex technical issues, optimizing workflows, and delivering practical solutions that improve day-to-day operations. My journey began with curiosity and has evolved into a profession focused on efficiency, automation, and user satisfaction. Committed to continuous learning and delivering high-quality technical solutions that align with business goals. 🔹 My Core Expertise ✅ IT Support & Help Desk Services • Remote Desktop Support • Technical Support (Level 1, 2 & 3) • Help Desk Support • Desktop & Laptop Troubleshooting • Hardware & Software Support • Troubleshooting hardware & software • MacOS Support • Printer & Peripheral Configuration • Mobile Device Support (Android & iPhone) ✅ System & Network Administration ✅ Microsoft 365 Administration • Microsoft 365 Setup & Management • Azure Active Directory (Azure AD) • Microsoft Intune Device Management • Exchange Online Administration • SharePoint Online • Microsoft Teams Administration • User Management & Security Policies • Email Migration & Troubleshooting • MS Power Automate ✅ Business Automation & Productivity • Power Automate, N8N, Workflow Automation • AI-Powered Business Solutions • Process Optimization, Email Automation • Business Automation Consulting • GoHighLevel Automation • Workflow Integration ✅ Virtual Assistant & Administrative Support • Administrative Tasks • Data Management • Client Support • Project Coordination • Slack & Monday Management 💡 Why Clients Choose Me ✔ Bachelor's Degree in Computer Science & Engineering (CSE) ✔ 10+ Years of Professional Experience ✔ Worked with 150+ International Clients ✔ Fast Response & Excellent Communication ✔ Quality Work with On-Time Delivery ✔ Focused on Long-Term Client Relationships ✔ 100% Commitment to Client Satisfaction My goal is simple: provide dependable IT support, optimize your systems, secure your infrastructure, and help your business operate more efficiently. Thank you for your valuable time and consideration. I look forward to helping you achieve your goals. Best Regards, Rimon Kumar Sarker

22+ years in the telecommunications and Software industry from design, development, management, delivery, and lead. Vast experienced focused on solution customization for Cloud Telecommunication System. Specialist in Communication System like Core GSM, IP, SIP, WebRTC, SS7, Radius, Diameter, SMPP, XMPP, SNMP, Sockte, RabbitMQ Message Broker, Software Defined Radios (SDR), and IoT. Also capable to develop and deliver any communication-related solution.